ASTM A615/A615M-20 pdf free download

ASTM A615/A615M-20 pdf free download.Standard Specification for Deformed and Plain Carbon-Steel Bars for Concreten Reinforcement.
1 .1 This specification covers deformed and plain carbon- steel bars in cut lengths and coils for concrete reinforcement. Annex A2 of this specification covers deformed bars for use for other applications. Steel bars containing alloy additions, such as with the Association for Iron and Steel Technology and the Society of Automotive Engineers series of alloy steels, are permitted if the resulting product meets all the other requirements of this specification. The standard sizes and dimensions of deformed bars and their number designations are given in Table I.
1.2 Unless specified for use for other applications in Annex A2. bars are of four minimum yield strength levels: namely, 40000 psi [280 MPaj, 60 000 psi [420 MPaJ. 80 000 psi [550 MPa]. and 100 000 psi 1690 MPaJ, designated as Grade 40 (280], Grade 60 (4201, Grade 80 (5501, and Grade 100 16901, respectively.
Nom I—Grade 100 16901 reinforcing bars were intr(xiuced in this specification in 2015. In Contrast to the lower grades, which have ratios of specified tensile strength to specified yield strength that range from 1 .25 to 1.50. Grade 1(X) [690] reinforcing bars have a ratio of specified tensile strength to specified yield strength of 1.15. Users ot this specification should he aware that there will, therefore, be a lower margin of safety and reduced warning of failure following yielding when Grade 100 16901 bars arc used in structural members where strength is governed by the tensile strength of the reinforccmcnt, primarily in beams and slabs. As a result of the lower specified tensile strength to specified yield strength ratio of 1.15 for Grade 100 6901. users of this specification should be aware that ACI 318 Type I mechanical and welded splice requirements found in many acceptance criteria of 125 % of specified yield strength requirements in tension and compression are not applicable to Grade 100 16901. Mechanical and welded splices should meet a minimum specified tensile strength of 115 000 psi [790 MPa] for Grade 100 [690].
Nom 2—Users of this specification need to be aware that consensus design Codes and specifications may not recognize the use of the No. 20 1641 bar, the largest bar included in this specification. Structural members reintwced with No. 20 1641 bars may require approval of the building oflicial or other appropriate authority and require special detailing to ensure adequate performance at service and factored loads.
1.3 Plain bars, in sizes up to and including 2½ in. [63.5 mm] in diameter in coils or cut lengths, when ordered shall be furnished under this specification in Grade 40 12801, Grade 60 14201, Grade 80 15501, and Grade 100 16901. For ductility properties (elongation and bending), test provisions of the nearest smaller nominal diameter deformed bar size shall apply. Requirements providing for deformations and marking shall not be applicable.
NOTE 3—Welding of the material in this specification should be approached with caution since no specific provisions have been included to enhance its weldability. When this steel is to be welded, a welding procedure suitable for the chemical composition and intended use or service should be used. The use of the latest edition of AWS D1.4/Dl.4M is recommended. The AWS Dl.4iVl.4M Welding Code describes the proper selection of the filler metals and preheat/interpass temperatures. as well as performance and procedure qualification requirements.ASTM A615/A615M pdf download.

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